RFC 3211 (rfc3211) - Page 1 of 17

Password-based Encryption for CMS

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Network Working Group                                         P. Gutmann
Request for Comments: 3211                        University of Auckland
Category: Standards Track                                  December 2001


                   Password-based Encryption for CMS

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2001).  All Rights Reserved.

Abstract

   This document provides a method of encrypting data using user-
   supplied passwords and, by extension, any form of variable-length
   keying material which is not necessarily an algorithm-specific
   fixed-format key.  The Cryptographic Message Syntax data format does
   not currently contain any provisions for password-based data
   encryption.

1. Introduction

   This document describes a password-based content encryption mechanism
   for CMS.  This is implemented as a new RecipientInfo type and is an
   extension to the RecipientInfo types currently defined in RFC 2630.

   The format of the messages are described in ASN.1 [ASN1].

   The key words "MUST", "MUST NOT", "REQUIRED", "SHOULD", "SHOULD NOT",
   "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be
   interpreted as described in RFC 2119.












Gutmann                     Standards Track
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